Plant nutrient requirements

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14
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1answer
3k views

What is my citrus deficiency, based on leaf appearance? And how to treat?

In the images of my citrus below, you can see the leaves are paling towards the edges. What is the deficiency and how can I fix it? The soil is clay-dominated with some sand and coloured red, ...
14
votes
1answer
551 views

How can I correct a nutrient excess in soil?

The soil sample I took last fall from my vegetable garden came back from the lab with this result: Optimum Range Calcium, Mehlich 3 (Ca) 2063 ...
12
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4answers
282 views

Are “minerals” and “nutrients” the same thing?

Some good answers on this question: Is it worth spreading ash on the vegetable plot?. But one answer says: I can't think of any minerals that would be present and the other upvoted answer ...
12
votes
1answer
276 views

What are the primary nutrients utilized by plants beyond NPK?

When talking about soil and fertilizers, what are the primary nutrients in addition to NPK (Nitrogen, Phosphorus, Potassium) that play a major role in plant development?
10
votes
1answer
201 views

What are the differences between above and below ground irrigation?

Is there a major difference in effectiveness of delivery of water/nutrients through the use of above ground (sprinkler, flooding, etc) versus below ground (buried drip pipes) irrigation systems?
8
votes
2answers
220 views

Runner Beans: Is it really necessary to rotate them?

A firm believer in 3-year crop rotation, I sow my runner beans in a different plot every year. After they crop, I dig their stems and roots into the soil, to replenish it with their captured nitrogen; ...
7
votes
1answer
72 views

What are methods of increasing the protein content of garden vegetables?

I read a random article about the effects of a certain fertilizer on tomatoes and how it happened to increase the protein content of the tomatoes relative to other fertilizers (1, 2) and it piqued my ...
4
votes
2answers
201 views

How should I care for a potted apple seedling?

About two weeks ago, a friend of mine ate an apple and found that the seeds had already sprouted inside the apple. I thought this was pretty cool, so I put them in a cup to grow. They grew into ...
4
votes
1answer
56 views

Nutritional value of home-compostable plastic?

There are types of compostable plastic that you can compost yourself at home (as opposed to compostable plastic that can only be composted in industrial composting facilities). I was wondering if ...
4
votes
1answer
143 views

What nutrient solution is best for hydroponic basil?

What hydroponic nutrient solution is best for growing basil? I'd prefer to know what characteristics to look for rather than a particular brand or product.
3
votes
1answer
74 views

What are the best components for producing compost which supply maximum nutrients?

People made compost from different components but they cannot realize about nutrient amount in the compost. So it is essential for selecting appropriate components. It is very important for organic ...
2
votes
3answers
101 views

My first strawberries of the season are not very flavorful

I have a strawberry patch that I've left go for the past few years. It's gotten rather wild in the back garden as I've had little time to really devote to gardening lately. I went out to the patch ...
2
votes
1answer
46 views

Organic method of helping a Manganese deficient lemon tree

My young lemon tree has yellow blotches on some of its leaves, even though the leaves are quite newly grown. This advice suggests that it's likely to be deficient in Manganese, rather than Magnesium, ...
2
votes
2answers
59 views

Are (water) re-grown spring onions worth it?

Spring onions (or scallions) can be re-grown in water by saving the roots and placing them in water and, as the article in the link suggests, these re-grow in to full spring onions within a matter of ...
2
votes
2answers
83 views

Nutrition for a Navel Orange

Need some help keeping my navel orange healthy. The first image shows the (semi-dwarf) navel orange shortly after I planted it in September 2012 (around 8 to 9 months ago from writing this post). The ...
1
vote
1answer
919 views

How is nutritional value in fruit and vegetables measured?

We often read in books and Wikipedia that certain fruits or vegetables contain certain amount of vitamins, minerals and other elements. An example can be seen on Beetroot in the box with nutritional ...
1
vote
0answers
30 views

pondplants with a lack of nutrients?

I have a gardenpond (roughly 16000 litres) which is crystal clear. The pond contains no fish, only amphibians and insect life and a lot of plants. some plants, like the pondweed are real hardhitters ...